J Neurocrit Care.  2024 Dec;17(2):94-97. 10.18700/jnc.240037.

Severe cerebral vasospasm following non-K1 Escherichia coli meningitis: a case report

Affiliations
  • 1Department of Neurology, Brown University Health, Providence, Ri, USA
  • 2Department of Pathology and Laboratory Medicine, The Warren Alpert Medical School of Brown University, Providence, RI, USA
  • 3Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, RI, USA
  • 4Department of Diagnostic Imaging, Brown University Health, Providence, RI, USA
  • 5Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI, USA

Abstract

Background
Cerebral vasospasm has been reported following various forms of bacterial meningitis; however, there have been no prior reports of meningitis caused by the non-K1 strain of Escherichia coli.
Case Report
A 63-year-old man with chronic thrombocytopenia presented with new-onset seizures that progressed to coma. Cerebrospinal fluid (CSF) analysis showed Gram-negative rods, but CSF culture and the Biofire FilmArray Meningitis/Encephalitis Panel were negative. Additional 16S ribosomal ribonucleic acid (rRNA) polymerase chain reaction and sequencing of the CSF sample indicated E. coli meningitis when correlated with the results of urine culture. The patient eventually developed diffuse cerebral arterial vasospasms with multifocal brain infarcts that progressed to brain death.
Conclusion
E. coli meningitis in adults may be missed if diagnostic tests include only K1 strains. Clinicians should be aware of cerebral vasospasm as a potentially serious complication of E. coli meningitis, and should consider screening for it, particularly in patients with associated risk factors.

Keyword

Vasospasm; Meningitis; 16S rRNA polymerase chain reaction; Case report

Figure

  • Fig. 1. (A) Axial magnetic resonance image (MRI) of the brain showing a periventricular T2/fluid-attenuated inversion recovery signal consistent with transependymal edema from the acute communicating hydrocephalus. Sagittal (B) and axial (C) T1-weighted post-contrast MRI of the brain with arrows pointing to purulent fluid in the cisterna magna.

  • Fig. 2. (A) Axial computed tomography (CT) angiogram, with maximum intensity projection, demonstrating full caliber arteries on hospitalization day 2. (B) Axial contrast enhanced CT showing vasospasm of both the middle cerebral arteries on hospitalization day 8. (C) Axial non-contrast CT prior showing no ischemic burden on hospitalization day 2. (D) Axial non-contrast CT showing multilobar hypodensities consistent with infarction from vasospasm, with associated cerebral edema, on hospitalization day 8.


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